(redirected from Hard disk recorder)
Also found in: Dictionary, Wikipedia.


(1) (Digital Video Recorder) A device that records video from up to a dozen or more surveillance cameras onto a hard disk. The frame rate can be switched from real time to time lapse in order to save storage space. Digital recorders are more flexible than earlier analog VHS tape systems, and the video can be easily transmitted over a computer network. See CCTV.

(2) (Digital Video Recorder) Also known as a "personal video recorder" (PVR) or "hard disk recorder," a DVR is a consumer device that allows the viewer to pause and rewind any broadcast, cable or satellite TV program as well as record and play back selected programs (see live pause). An order of magnitude more flexible than earlier videocassette tape recorders (VCRs), an entire season of programs from one or more favorite series can be recorded.

DVRs may be built into the set-top box or replace the box using plug-in modules (see CableCARD). They store incoming digital TV signals on the hard disk as well as digitize analog TV into the MPEG-2 format. The video may be compressed to maximize storage space.

Part of the Service or Stand-Alone
The DVR periodically downloads channel program guide updates as well as software updates for the unit itself. When the DVR is integrated into the cable or satellite set-top box, the downloads ride the same medium as the TV service. When the DVR is stand-alone, the downloads come in via the home network.

Before the Turn of the Century
DVRs first came on the market in 1999 with products from ReplayTV and TiVo ( They quickly made the VCR obsolete for timeshifting TV programs, and Tivo became the DVR leader. ReplayTV was later acquired by SONICblue, D&M Holdings and eventually the DirecTV satellite TV service ( See cloud DVR, multi-room DVR sharing, live pause, DVD recorder and networked DVR. Contrast with NVR.

This earlier DVR from ReplayTV appears in front of the Find Shows screen, which enables a viewer to search for programming throughout the week by keyword. (Image courtesy of ReplayTV.)
References in periodicals archive ?
Not only does the consumer get a free lifetime subscription from Replay TV, but the product is very easy to use and has quickly become the choice of the end user looking for the best hard disk recorder on the market.
Together, these solutions allow Analog Devices to deliver cinema-quality audio and video to groundbreaking products, like Toshiba's RD-A1 hard disk recorder with HD DVD, and redefine the consumers' entertainment experience.
Add to that features that far out weigh our competition all offered at a reasonable price, and I believe the R-1 will dominate the hard disk recorder market within two years.
At the AES show, Euphonix also debuted the R-1 digital multi-track recorder, a 24-bit hard disk recorder poised to replace the 50,000 traditional analog tape machines installed in today's studios.
New Hitachi products for 2006 will include Plasma and LCD televisions with built-in HD recording functionality via an internal hard disk recorder.
Besides its free service tvtv enables remote programming of PC based Hard disk Recorder and Personal Video Recorder via Internet and Mobile Phone.
Schlomka stated, "We are very pleased COMO will soon be joining FOCUS Enhancements, as the combination creates a complete product suite from the FireStore Digital Hard Disk Recorder to our Media Management Server System to the Visual Circuits' Playout Solutions.
The Cocoon series is an advanced line of Sony products including a hard disk recorder (HDD) with PVR functionality.
No problem, because thanks to my hard disk recorder I was able to rewind back to the start.
According to the company, MediaGiantPro is a high definition network media player and hard disk recorder in one solution that comes with integrated powerline technology.
It is, in fact, a hard disk recorder, packing 80GB.
Designed for the modern keyboard player, Fusion is a powerhouse product containing four types of synthesis, a multi-track hard disk recorder, built-in sampler and a large library of built-in effects processing.